Information about Printer

 A printer is a peripheral device that is used to produce hard copies of digital documents or images from a computer or other electronic device. There are various types of printers available in the market such as inkjet printers, laser printers, dot matrix printers, and thermal printers.

Inkjet printers use liquid ink to produce high-quality prints and are suitable for printing documents, photographs, and graphics. Laser printers, on the other hand, use toner to produce prints and are known for their speed and precision. Dot matrix printers use a series of pins to create images or characters and are commonly used for printing receipts or invoices. Thermal printers use heat to transfer ink onto paper and are often used in printing receipts, labels, and barcodes.

Printers can be connected to a computer through various methods such as USB, Wi-Fi, Bluetooth, or Ethernet. They are widely used in homes, offices, and other organizations for printing documents, reports, photos, and other materials.


Impact printers are a type of printer that work by physically striking an inked ribbon against paper to create text or images. There are several types of impact printers, including:

  1. Dot matrix printers: Dot matrix printers create images and text by striking tiny pins against an inked ribbon, creating dots that form characters or images. These printers are known for their durability and ability to print through multiple layers of paper.

  2. Daisy wheel printers: Daisy wheel printers use a rotating wheel with spokes that have raised characters or symbols on the ends. As the wheel rotates, the correct spoke moves into position and strikes an inked ribbon to create a character or symbol. These printers are known for their high quality output but can be slower than other impact printers.

  3. Line printers: Line printers print entire lines of text at once using a series of print hammers that strike an inked ribbon against the paper. These printers are typically used for high-volume printing and can print hundreds or even thousands of lines per minute.

  4. Drum printers: Drum printers use a rotating drum with characters or symbols on its surface. As the drum rotates, the correct character moves into position and strikes an inked ribbon against the paper to create a printout. These printers are known for their high speed and are commonly used in mainframe computer systems.

Overall, impact printers are becoming less common as newer technologies like inkjet and laser printers become more affordable and widely available. However, they are still used in certain industries where durability and reliability are important.

Non-impact printers are a type of printer that create images or text on paper without physically striking an inked ribbon or other printing medium against the paper. There are several types of non-impact printers, including:

  1. Inkjet printers: Inkjet printers create images and text by spraying tiny droplets of ink onto paper. These printers are known for their high-quality output, versatility, and affordability.

  2. Laser printers: Laser printers use a laser beam to create an electrostatic image on a photosensitive drum, which then attracts toner particles to create an image or text. These printers are known for their fast printing speed and high-quality output.

  3. Dye-sublimation printers: Dye-sublimation printers use heat to transfer dye onto paper, creating a high-quality image or text. These printers are commonly used for printing photographs and other high-quality graphics.

  4. Thermal printers: Thermal printers use heat to create an image or text on specially coated paper. These printers are commonly used for printing receipts, shipping labels, and other small documents.

Overall, non-impact printers are becoming more popular than impact printers due to their high-quality output, faster printing speed, and lower noise levels. They are commonly used in homes, offices, and other settings where high-quality printing is required.

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